Silsilat al-Ahadith al-Sahihah

Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Indeed, Allah does not look at your bodies, your forms, or your wealth; rather, He looks at your hearts and your deeds." (While speaking about the heart, the Prophet [peace be upon him]) pointed towards his chest.